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A METHOD OF PRE-EMPTIVELY REGENERATING A LEAN NOX TRAP.

机译:一种预先生成再生NOx捕集阱的方法。

摘要

This invention purges an NOx trap pre-emptively to avoid NOx slippage. It does this by monitoring a vehicles routes 215, then using that historical data to predict when NOx slippage will occur 220. If NOx is likely to escape or be released, it will then predict the engines future load, and work out if there will be a favourable opportunity for it to purge or regenerate the NOx trap, or LNT 230. It can also measure other engine factors, such as exhaust temperature, drops in air/fuel ratio and high or low engine speed, and use this information to calculate the probability of NOx slippage.
机译:本发明预先清除了NOx捕集器,以避免NOx打滑。它通过监视车辆路线215进行此操作,然后使用该历史数据来预测220何时发生NOx滑移。如果NOx可能逸出或释放,则它将预测发动机的未来负荷,并计算出是否存在它是吹扫或再生NOx捕集阱或LNT 230的有利时机。它还可以测量其他发动机因素,例如排气温度,空燃比下降以及发动机转速高低,并使用此信息来计算NOx滑动的可能性。

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